ChanServ changed the topic of ##yamahasynths to: Channel dedicated to questions and discussion of Yamaha FM Synthesizer internals and corresponding REing. Discussion of synthesis methods similar to the Yamaha line of chips, Sound Blasters + clones, PCM chips like RF5C68, and CD theory of operation are also on-topic. Channel logs: https://freenode.irclog.whitequark.org/~h~yamahasynths
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<m4t>
i get the impression that there are actually a lot of NOS opl3/yac512
<m4t>
zero out there on the protocol used. must be behind nda? or i'm not looking in the right place.
<whitequark>
m4t: i can saturate usb2
<whitequark>
easily.
<m4t>
why not fx3? :)
<whitequark>
because the FPGA isn't fast enough for fx3 anyway
<whitequark>
and because fx3 is more expensive
<whitequark>
glasgow revE will use an FX3 and largest ECP5-5G
<m4t>
thats pretty cool tho, like a bus pirate on steroids or something
<whitequark>
yeah
<m4t>
you going to do a crowdsupply or similar?
<whitequark>
something like
<whitequark>
so i discovered something interesting
<whitequark>
when you are using OPL3 in OPL2 mode, you HAVE to initialize CHA=1 in C0..C8 when setting NEW=0
<whitequark>
or otherwise percussion will be all weirdly fucked up
<whitequark>
leaving CHA=0 in 1C0..1C8 seems fine though
<superctr>
you also have to make sure the waveforms are all reset
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<andlabs>
[03:14:43] <protosphere>interesting, if I try "C-Lab Logo.vgz" from Rusty @ 3.1v, it never plays back
<andlabs>
can we talk for a bit about how C-Lab was both the name of an American computer peripherals manufacturer and a Japanese eroge developer
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<whitequark>
superctr: i reset all defined registers to 0
<whitequark>
while enabling all the new feature bits
<whitequark>
and then i disable those bits back
<whitequark>
so, should be fine... except CHA/CHB have to be reset to 1 apparently
<superctr>
yes
<whitequark>
any others i should be aware of?
<superctr>
i have an opl3 init vgm that i usually use before playing any opl2 song, but i can't find it right now
<superctr>
it should be enough to make sure you initialize it in opl3 mode, then go back to opl2 mode, as you're doing now
<superctr>
panning bits must be set as it is not masked in opl2 mode
<andlabs>
https://www.cosine.org.uk/products.php?prod=epic_realtime&4mat=gba "At Demodays in the summer of 2012, a group of demo coders noticed a bug with the scene archive Pouet that prevented users from uploading two productions released at the same party, both sharing the same name but from different groups. This led to a couple of guys who were members of several groups deciding to flood the next competition with the same production and
<andlabs>
versions of Epic Realtime were released on the Vectrex, Atari 800, Gameboy Advance, Nintendo Wii, PC 4K, PC Demo and even a video for the Wild competition."
<andlabs>
https://i.imgur.com/4g1dvJi.png well fuck you too (especially with no indication of when I'll be unbanned or any contact information to request it, because yes I did scrape the GEOS page, but that was two or three weeks ago)
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<andlabs>
Pietro Gagliardi, [29.09.19 13:10] so apparnetly there is a c64 game called 'mask of the sun' and it is not ys 4 so I am disappoint
<andlabs>
Pietro Gagliardi, [29.09.19 13:11] I wonder how different things would have been if the major computer RPGs from Japan were ported to American computers, and it wasn't just the handful of Game Arts titles by Sierra
<cr1901_modern>
AIUI, NEC PC-98 won over there, and it's different enough from IBM PC that it's a PITA to port
<andlabs>
wait so you're syaing they tried but gave up saying it was too hard?
<andlabs>
that's even more disappointing
<andlabs>
anyway this mask of the sun is apparently from 1982 and it also does not work; it just drops me to an OK> prompt and then hangs when I type anything, and this is in both NTSC and PAL
<cr1901_modern>
I don't know whether they gave up or not
<cr1901_modern>
I'm saying a port would be more complex than doing the translation
<cr1901_modern>
Also, the ys reference went over my head- never played it :(
<cr1901_modern>
I just realized how to tell samples from FM synthesis music on the Genesis...
<cr1901_modern>
maybe this is obvious to others
<cr1901_modern>
samples will sound a bit muffled, like a low pass effect, I guess b/c there's a limit to how fast you can byte bang the Ch. 6 DAC
<cr1901_modern>
and FM will sound clean
<andlabs>
the fourth game in the ys series is called mask of the sun
<andlabs>
unless you're on the pc engine cd, which got an entirely separate game
<m4t>
andlabs: i think guy who runs that website is on irc
<cr1901_modern>
Sarayan: About halfway down this page, you'll see a few structures for latches as implemented in NMOS. Have you seen these used in your OPN RE? And if so, how often? (Besides the reg file): http://www.aholme.co.uk/6502/Main.htm
<cr1901_modern>
Also, I wonder how long that gate capacitor remains charged when you create a latch like that? The easy MOSFET models you use on pen and paper ignore gate capacitance :(
<andlabs>
"Last Occultism ~ Esotericist of the Present World"
<andlabs>
ok touhou has now become self-parody
<violet_detector>
what's that supposed to mean -3-
<emily>
cr1901_modern: ping
<cr1901_modern>
emily: pong
violet_detector was banned on ##yamahasynths by cr1901_modern [*!uid394113@*]
violet_detector was kicked from ##yamahasynths by cr1901_modern [violet_detector]
* cr1901_modern
sighs
<cr1901_modern>
I had a feeling
<andlabs>
whow as that
<emily>
mewtrino ban-evading
<cr1901_modern>
balrog: When you're around... do you have scrollback? Is it possible to IP ban on Freenode?
<cr1901_modern>
I wish pidgin had IRC macros...
<cr1901_modern>
so I could make "/msg ChanServ op $channel" su $channel
<cr1901_modern>
B/c I forget it. Every. Single. Time.
<emily>
no use in irc banning when she's going through matrix and irccloud and the like to proxy
<emily>
*ip banning
<cr1901_modern>
Hrm
<cr1901_modern>
I hope this doesn't become a pattern, being a smaller channel. But I can install more mods if necessary. When Freenode has the spam problem, that was pretty bad
<cr1901_modern>
I was asleep when they found this room, and I got a (justified) angry message from LN to make it stop